A Plastic Based Electrowetting on Dielectric Microchip Integrate with Electrochemical Sensor by Screen Printing

Abstract

In this research, a plastic based electrowetting on dielectric (EWOD) microchip with electrochemical sensor was studied. The microchip was designed, fabricated and experimental studied for the chemical analysis. For the design, the microchip was designed with the T-junction base for develop to the new junction that can analyte four droplets in one time and use three electrodes as electrochemical sensor in the end of the junction. The electrochemical sensor comprising three electrodes, including carbon working, carbon counter, and silver/silver chloride reference electrodes. The EWOD integrate with electrochemical sensor was fabricated by screen sprint technique and was tested to possibility of moving droplets on the microchip and chemical analysis with digital operator.The screen-printed EWOD microchip with integrated screen-printed carbon electrochemical sensor could be a promising alternative for low-cost automated chemical analyses